SUBJECTS
|
BROWSE
|
CAREER CENTER
|
POPULAR
|
JOIN
|
LOGIN
Business Skills
|
Soft Skills
|
Basic Literacy
|
Certifications
About
|
Help
|
Privacy
|
Terms
|
Email
Search
Test your basic knowledge |
Dairy Cattle And Reproduction
Start Test
Study First
Subjects
:
industries
,
dairy
Instructions:
Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Microscopic - make sure not sterile - very few bulls are actually tested
cow estrus cycle
Dairy Cattle Gestation
6-8 weeks
semen evaluation (BSE)
2. Important 'landmark' during palpation
Where livelihood is in agriculture
cervix
Lutinizing Hormone in females
Brown Swiss Cow
3. (male) pushes the testes upward toward the body for warmth or protection
urethra
mare's estrous cycle
dartos muscle
uterus
4. 1. seminiferous tubules - 2. sertoli cells - 3. leydid or interstitial cells
vulva
ewe's estrous cycle
organs used in spermatogenesis
cow estrus
5. Allows extension of penis without fibro-elastic penis
what has to happen for males for copulation to occur
visual evaluation (BSE)
burdizzo
sigmoid flexure
6. Days which have decreasing daylight hours
Warning
: Invalid argument supplied for foreach() in
/var/www/html/basicversity.com/show_quiz.php
on line
183
7. To remove/separate testicles from animal's body before animal reaches puberty
sperm cell
castration
testosterone
Dairy Cattle Gestation
8. 26 hours after estrus begins
castration
ewe ovulation
hypothalamus and pituitary gland
what has to happen for males for copulation to occur
9. Constitute 50-90% of the volume of the ejaculate. (3 glands total: seminal vesicles - prostate gland - cowper's gland)
polyestrous
accessory sex glands
Dairy Cattle milking schedule
#1 cost in production
10. 19-23 (21) days
ewe estrus cycle
cow estrus cycle
Blood
Dairy Cattle milking schedule
11. 1-3 days
spermatogenesis
testis (gonads)
sow estrus
prostaglandin
12. Duct which connects epididymis to urethra of the penis. transports sperm at ejaculation. cut to sterilize male.
functions of progestrone
1. more cost effective - 2. powdered milk is in excess production
van deferens
Size of cow in relation to the amount of milk produced
13. 147 days
ewe gestation
Lutinizing Hormone in females
Dairy Cattle Gestation
you want as much sperm as possible to come in contact with the egg before ovulation. the main idea is to have the sperm already in the oviduct when the egg passes through
14. Examine accessory glands - also to know how big the pelvic opening is->heritable->relates to how much dystocia that bull's daughter has
rectal palpation (BSE)
reason for seasonal breeding periods
Dairy calves are removed from cow at birth to...
sigmoid flexure
15. (LH) causes female's egg to break (her period)
monorchid
cowper's gland
Lutinizing Hormone in females
Hard
16. Completes uterine growth initiated by estrogen and prepares the uterus for nourishment of developing embryo if pregnancy occurs - supports pregnancy by maintaining quiescent state of reproductive tract and suppresses mating behavior - prevents ovulat
penis and prepuce observation (BSE)
Hormones from both the fetus and the mom.
reasons for castration
functions of progestrone
17. Luteolysis happens because of the ____________ hormone
~1 month
prostaglandin
Blood
oviducts
18. Not under a timeline - cow can not be sold as steak
Grading choice
Bull's fibro-elastic penis
urethra
mare's estrous cycle
19. 30 hours after estrus begins
feeding a high producing dairy cow
cow ovulation
age and castration
colostrum
20. Head - neck - mid-piece - tail. genetic material - has an enzyme covering that allows it to penetrate the egg
stag
ewe's estrous cycle
sperm cell
estrus
21. 1. need to be restricted in amt of grain - 2. no more than 70% of ration can be concentrates. 3. *Acidic acid has to be produced in order for milk synthesis to occur (30% forages)
ewe's estrous cycle
feeding a high producing dairy cow
visual evaluation (BSE)
hormones
22. (male) definition: duct located outside of the testes. 3 parts: head - body - tail. 4 Functions:concentrate sperm - store sperm - transport sperm - site of sperm maturation. entire process takes ~40-60 days
age and castration
epididymis: definition - 3 parts - 4 functions
Dairy Cattle milking schedule
cremaster muscle
23. 1. reproduction - 2. mastitis/udder problems - 3. low milk production - 4. soundness/poor feet and legs (living on concrete)
Jersey Cow
4 major reasons for culling dairy cows
visual evaluation (BSE)
ewe estrus cycle
24. Castration tool which clamps down on the vans deferens. causes the sperm to not reach the penis to be ejaculated
6-8 weeks
Blood
urethra
burdizzo
25. (LH) causes female's egg to break (her period)
Lutinizing Hormone in females
cow estrus cycle
Avg. bull specs
4 major reasons for culling dairy cows
26. BST given to dairy cattle makes the mammary gland more persistent - helps produce more milk. good as Long-term because it does not cause cow to bulk up - provides more milk/cow Which means less cows needed - less cows need to be given feed - lower co
~1 month
effects of BST
Dairy Cattle milking schedule
cow gestation
27. 30-38 hours after estrus cycle begins
1. more cost effective - 2. powdered milk is in excess production
stag
humans: stress level vs sperm
sow ovulation
28. Duct through penis that carries sperm and urine
reason for seasonal breeding periods
testosterone
urethra
cervix
29. 1. reproduction - 2. mastitis/udder problems - 3. low milk production - 4. soundness/poor feet and legs (living on concrete)
4 major reasons for culling dairy cows
butterfat
age and castration
1. more cost effective - 2. powdered milk is in excess production
30. Animals which have only one estrous cycle (ex: dog - fox)
dry-off time in dairy cattle
monestrous
mare estrus cycle
penis sizes vs delivering methods
31. 24 hours before end of estrus cycle
mare ovulation
mare estrus
1. more cost effective - 2. powdered milk is in excess production
growth lost from castration methods (knife & band)
32. (FSH) causes egg to mature in females
burdizzo
Follical Stimulating in females
behavioral signs of estrus
monorchid
33. 45-60 days after breeding; re-breed as required
epididymis: definition - 3 parts - 4 functions
Jersey Cow
dairy cattle pregnancy check
growth lost from castration methods (knife & band)
34. So when offspring are born - there is more food to be found for energy stores and fat deposits IN THE SPRING
sigmoid flexure
feeding a high producing dairy cow
reason for seasonal breeding periods
elastrator
35. 1. visual evaluation - 2. scrotal circumference - 3. penis and prepuce observation - 4. rectal palpation - 5. libido test - 6. semen evaluation
dairy cattle pregnancy check
things to check for in a breeding soundness exam (BSE)
functions of progestrone
cow estrus
36. 2 month growth cycle. stored in the epididymis of the bull
reason for seasonal breeding periods
Culls bulls earlier (2 reasons)
dry matter and water
Sperm growth rate
37. The more stressed out the male is - the less sperm he is going to produce
testis (gonads)
dry-off time in dairy cattle
ewe ovulation
humans: stress level vs sperm
38. Castration tool that uses a band around the testicles which cuts off circulation and eventually the testicles fall off
functions of progestrone
elastrator
feeding a high producing dairy cow
growth lost from castration methods (knife & band)
39. Knife-loose ~1wk of growth. band-loose ~2wks of growth.
epididymis: definition - 3 parts - 4 functions
growth lost from castration methods (knife & band)
mare estrus
scrotum
40. ~60 days before calving
femininity of a heifer
libido test (BSE)
dry-off time in dairy cattle
mastitis
41. Not under a timeline - cow can not be sold as steak
Sperm survival specs
penis sizes vs delivering methods
functions of progestrone
Grading choice
42. Produce testosterone. located between the seminiferous tubules
ewe estrus
reasons for castration
leydid or interstitial cells
urethra
43. (male) pushes the testes upward toward the body for warmth or protection
dartos muscle
eminal vesicles
ewe ovulation
burdizzo
44. The more stressed out the male is - the less sperm he is going to produce
seminiferous tubules
Lutinizing Hormone in females
sow estrus cycle
humans: stress level vs sperm
45. 1. to eliminate breeding the females at an early age - 2. makes animals less lean and provides a better cut for the market
seminiferous tubules
Follical Stimulating in males
reasons for castration
mare's estrous cycle
46. 4-6 days
scrotum
cremaster muscle
6-8 weeks
mare estrus
47. What makes the milk flow through the mammary glands?
retractor muscles
Grading choice
Sperm survival specs
Blood
48. Boars and stallions-> deliver semen directly into the cervix. bulls and rams-> deliver semen into the vagina.
spermatogenesis
sow gestation
penis sizes vs delivering methods
visual evaluation (BSE)
49. What about the sperm for a bull which has been castrated but still has testicles?
testis (gonads)
scrotal circumference (BSE)
scrotum
Testicles will produce testosterone but not sperm. Bull will attempt to mate - but will be sterile
50. 10-37 (21) days
mastitis
femininity of a heifer
mare estrus cycle
Holstein Cow